Self-Healing Materials for Ecotribology

Hydroxypropyl methylcellulose (HPMC) is a biopolymer that is biodegradable, environmentally friendly, and bio-friendly. Owing to its unique chemical structure, HPMC can reduce the coefficient of friction (COF) and frictional wear and thus possesses excellent lubrication properties. HPMC has good dis...

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Main Authors: Shih-Chen Shi, Teng-Feng Huang
Format: Article
Language:English
Published: MDPI AG 2017-01-01
Series:Materials
Subjects:
Online Access:http://www.mdpi.com/1996-1944/10/1/91
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author Shih-Chen Shi
Teng-Feng Huang
author_facet Shih-Chen Shi
Teng-Feng Huang
author_sort Shih-Chen Shi
collection DOAJ
description Hydroxypropyl methylcellulose (HPMC) is a biopolymer that is biodegradable, environmentally friendly, and bio-friendly. Owing to its unique chemical structure, HPMC can reduce the coefficient of friction (COF) and frictional wear and thus possesses excellent lubrication properties. HPMC has good dissolvability in specific solvents. The present research focuses on the reversible dissolution reaction subsequent to the film formation of HPMC, with a view to the healing and lubrication properties of thin films. Raman spectroscopy was used to test the film-forming properties of HPMC and the dissolution characteristics of various solvents. In this study, the solvents were water, methanol, ethanol, and acetone. The results showed that the HPMC film had the highest dissolvability in water. The ball-on-disk wear test was used to analyze the lubrication properties of HPMC, and the results showed that HPMC had the same COF and lubrication properties as the original film after being subjected to the water healing treatment. The HPMC film can be reused, recycled, and refilled, making it an ideal lubricant for next-generation ecotribology.
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spelling doaj.art-36ced32869974c31895ac18cdb9241592022-12-22T03:35:31ZengMDPI AGMaterials1996-19442017-01-011019110.3390/ma10010091ma10010091Self-Healing Materials for EcotribologyShih-Chen Shi0Teng-Feng Huang1Department of Mechanical Engineering, National Cheng Kung University (NCKU), No. 1 University Road, Tainan 70101, TaiwanDepartment of Mechanical Engineering, National Cheng Kung University (NCKU), No. 1 University Road, Tainan 70101, TaiwanHydroxypropyl methylcellulose (HPMC) is a biopolymer that is biodegradable, environmentally friendly, and bio-friendly. Owing to its unique chemical structure, HPMC can reduce the coefficient of friction (COF) and frictional wear and thus possesses excellent lubrication properties. HPMC has good dissolvability in specific solvents. The present research focuses on the reversible dissolution reaction subsequent to the film formation of HPMC, with a view to the healing and lubrication properties of thin films. Raman spectroscopy was used to test the film-forming properties of HPMC and the dissolution characteristics of various solvents. In this study, the solvents were water, methanol, ethanol, and acetone. The results showed that the HPMC film had the highest dissolvability in water. The ball-on-disk wear test was used to analyze the lubrication properties of HPMC, and the results showed that HPMC had the same COF and lubrication properties as the original film after being subjected to the water healing treatment. The HPMC film can be reused, recycled, and refilled, making it an ideal lubricant for next-generation ecotribology.http://www.mdpi.com/1996-1944/10/1/91self-healinghydroxypropyl methylcellulose (HPMC)biopolymergreen tribologylubricationsustainable manufacturing
spellingShingle Shih-Chen Shi
Teng-Feng Huang
Self-Healing Materials for Ecotribology
Materials
self-healing
hydroxypropyl methylcellulose (HPMC)
biopolymer
green tribology
lubrication
sustainable manufacturing
title Self-Healing Materials for Ecotribology
title_full Self-Healing Materials for Ecotribology
title_fullStr Self-Healing Materials for Ecotribology
title_full_unstemmed Self-Healing Materials for Ecotribology
title_short Self-Healing Materials for Ecotribology
title_sort self healing materials for ecotribology
topic self-healing
hydroxypropyl methylcellulose (HPMC)
biopolymer
green tribology
lubrication
sustainable manufacturing
url http://www.mdpi.com/1996-1944/10/1/91
work_keys_str_mv AT shihchenshi selfhealingmaterialsforecotribology
AT tengfenghuang selfhealingmaterialsforecotribology